Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1990 Mercury Grand Marquis LSFACTORY OEM SERVICE PROCEDURE
Alignment Specifications
WHEEL ALIGNMENT SPECS (CROWN VICTORIA, GRAND MARQUIS & TOWN CAR)
| Application | Fraction | Decimal | ||
|---|---|---|---|---|
| Camber (Degrees) | -1/2 +/- 3/4 | (-.5 +/- .75) | ||
| Caster (Degrees) (1) | 3 1/2 +/- 1 | (3.5 +/- 1.0) | ||
| Toe-in (Inches) | 1/16 +/- 1/8 | (-.06 +/- .13) | ||
| Toe-in (Degrees) | 1/8 +/- 1/4 | (.13 +/- .25) | ||
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WHEEL ALIGNMENT SPECIFICATIONS (MARK VII)
| Application | Fraction | Decimal | ||
|---|---|---|---|---|
| Camber (Degrees) | 0 +/- 3/4 | (0 +/-.75) | ||
| Caster (Degrees) (1) | 1 1/2 +/- 1 | (1.5 +/- 1.0) | ||
| Toe-in (Inches) | 1/8 +/- 1/8 | (.13 +/- .13) | ||
| Toe-in (Degrees) | 1/4 +/- 1/4 | (.25 +/- .25) | ||
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Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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